Question

Find the coloring cost of the sphere if the radious of sphere is 6 cm and cost per cm ^2for color is 3 rs

Answer 1

radius of sphere is 6cm
T.S.A of sphere=
$4\pi \: r {}^{2}$
= 4× (22/7)×6×6
=452.57cm^2
For 452.57cm^2 the cost will be
= 452.57× 3
=1357.71 rs